So a while back I ordered the 15 round flush fitting mags from shield arms for the Glock 43x. Well they came in the mail. I have never really liked the the short barrel on the 43x and these mags also work in the Glock 48. The 43 is nice but I can shoot my G19 much better. I happened into a gun store yesterday and they had a 48. As soon as I picked it up I knew I was buying it. The G48 is hand down the best Glock I have ever felt. I haven’t shot it yet but I think it’s my new carry gun. There are several reviews online that give the 15rd flush fitting S15 mag great reviews. The 48 is basically a G19 just skinny and lightweight.